After seeing its clout diminished in last month’s elections, the state teachers’ union plans to expand its political operation as Albany takes up key education issues that include raising the cap on charter schools.

The New York State United Teachers flunked the 2014 mid-term elections with an unsuccessful $4 million bid to tilt the state Senate to Democratic control.

The union also refused to endorse Gov. Cuomo for re-election.

Both Senate Republicans and Cuomo have been staunch supporters of charter schools and accountability measures for teachers.

Despite the setbacks, the union is creating a new unit of seven full-time political organizers to aggressively activate its 600,000 members.

A union job posting said the new political organizers will even “track member voter registration and turnout in campaigns” and “engage members around PAC fundraising.”

“This will enable us to further professionalize our political operation and organize our membership every day, 12 months a year. It’s more important than ever for our members to be active in the fight for public education,” said union spokesman Carl Korn.

He said the expansion was in the works before the election results came in.

The teachers’ union and it’s local outlet, the United Federation of Teachers, has long been one of the most powerful voices in Albany and City Hall.

But a new force has emerged on the other side: the well-heeled coalition representing charter schools and other reformers pushing to weaken or abolish teacher tenure.

A pro-charter political action committee, New Yorkers for a Balanced Albany, spent $4.4 million to aid Republicans in battleground state Senate races.

Meanwhile GOP senators said there’s no question that the union is in their doghouse.

“They’re going to have a difficult time in Albany in the future. They played their cards and their cards lost,” said Sen. Martin Golden (R-Brooklyn).

GOP officials were particularly infuriated when the left-leaning union intervened in a Senate Republican primary in the Buffalo-area, supporting the more conservative insurgent Kevin Stocker against incumbent Mark
Grisanti, who voted for gay marriage.

Stocker won the primary but Grisanti remained on the ballot on the Independence Party line.

The union then backed Democrat Marc Panepinto in the general election. While the GOP swept other races, Panepinto won this four-way contest.

Golden admitted the union remains a formidable force whose voice will be heard, if not heeded.